Balancing device for wheels.



W. G. SCHMITT.

HMANCING DEVICE FDR WHEELS.

MPL10/mor; man MAR.29.19;2.

Patented Nov. 9, 1915.

wfLhfxvc/ooco w WILLIAM G. somrr'fr'r', or sr. LoUIs, MissoUnL BALANCINGDEvIcE vnon. WHEELS.

'Specification of Letters Patent. Patented Nov. 9, 1915,

Application iiled March 2Q, 1912. Serial No. 687,269.

` To all whom t may concern:

Be it known that I, WILLIAM G'. SCHMITT, a citizen of the United States,residing at St. Louis, State of Missouri, have invented new and usefulImprovements in Balancing Devices for Wheels, of which ,the following isa specification.

This invention relates to balancing devices for pulleys, etc., theobject of the invention being to provide simple and reliable meanswhereby a wheel, pulley, or simiballs or 4heini-spheres, portions ofwhich are removed by the workmen, in order to strike a correct balancefor the wheel as a whole. Such a method requires the services of askilled mechanic, who, with the aid of acomp'ressed air chisel, removesportions ,of these balls or projections from the inside of the rim orfrom the arms or spokes, until the wheel shows a proper balance on thebalancing table. This requires several operations, and the wheel must belifted from thebalancing table a number of times,V before the correctbalance is obtained.

By means of the invention, hereinafter described, the wheelmay bebrought to a proper balance, without removing the same from thebalancing table, in one-fourth the time required by the old method, andat the same time, the balancing of the wheel or other device may beeffected by an ordinary unskilled mechanic.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts` as will behereinafter more fully described, illustrated lin the accompanyingdrawings, and pointed ollt in theclaim hereunto appended.

In the drawings: Figure l is a side elevation of a wheel or pulley, asnow ordinarily cast with the solid projections on the inside v of therim. Fig. 2 is a similar View, partly `said recess, and in this way'thecapacity ofin section, illustrating the present inveny tion. v l xReferring to the drawings,` 1 designates'a wheelof `the old type,provided with the usual rim 2, hub 3, arms or. spokes 4, anti` solidhemi-spherical proj tegrally with the surface of the rim.

As previously stated, in balancing such a wheel, it aisnecessary tochisel off or re-y move portions of the projections v5. -In thisimproved construbtion, the wheel or pulley, as shown in Fig. 2, embodiesthe" usual rim 6, hub 7, and arms or spbkes 8.

- In'carrying out the present invention, vhollow pockets "or containers9 are cast integrally with the rim 6, the said pockets or containersbeing preferably of heini-'spheri-v cal form, as clearly shown, andvprovided with openings or inlets 10, through which any suitable weightymaterial may be' in troduced in the operation of properly bal. ancingthepulley.

In Vthe preferred embodiment of the in-l vention, the rim 6 is providedin itsiinner:

ections b cast infv i face with recessesll, commensurate in size withthe base of the container which covers the=container is materiallyincreased. j

After placing the wheel or pulley on the balancing table, molten metalis poured into one or more ofthe pockets or containers, in accordancewith therequirements, until the necessary weight has been provided atthe'v `proper point to obtain a perfect balance of the wheel. It will beapparent that this is aA simple and quick operation,` and it isunnecessary to remove the wheel or pulleyfrom the balancing table, untilthe balancin has been completed. Of course, in lieu o molten metal, -anysoft metal may be driven] through the inlets to the pockets orcontainers, until the proper balancing'has been perfected. It ispreferred, however, to use molten metal, as 'it will take the shape ofthe interim1 of the containers, and by reason of the shape of thecontainers, such bodyi of metal pouredtherein will, after harderb ing,fit closely Within the containers andnott-v move. about or rattle.

Under the old plan of balancing fly wheels, pulleys, or the like, itrequires about,`

"tiet one hour on the part of a skilled workman to perfect a balance,whereas by means here- 2 www inabove described, an ordinary Workman isable to balance a Wheel Correctlyin from ten to fifteen minutes.

What is claimed is: Y

In combination, a Wheel having its inner peripheral surface provided atspaced in-w tervals with a plurality of ovlindrieal pookets, andsemi-spherical metallic oups arranged. to bear edge-Wise in the bottomplanes of, said pockets, each of said cups. 10 having 'an openingarranged to allow molten metal-to'enter the interior of the cup.

In testimony whereof I my signature in presence oftwo Witnesses.

WILLIAM G. SCHMITT. Witnesses:

WILIAM H. SCHMITT, JACOB SCHMITT..

